Switch.



W. W. DEAN.

SWITCH.

APPLICATION rlLED1uME2.|91s.

1 ,257,463 V Patentd Feb. 26, 1918.

l' L" z/Z ...Zi

WILLIAM W. DEAN, O F CHICAGO, I II'LINQIS, A'slsIGNon, Binnen-LAS umn,-

BENJAMIN ELECTRIC mANUFAcTUmNGcomnAN, or cHeA'e'o,

PATION 0F ILLINOIS.

swnrcn.

I Specification pf Leiters Patent.'

applicati@ me Iunemlsm semaine. #11191..

To all whom #may concern.'

Be it known' that'I, WILLIAM W, DEAN, a citizen of f :he United States, residing at Chicago, in the county ofCook and; State of Illinois, have invented new and useful 'Imrve'mentsin Switches, of which' theiolj owing is" a full, clear, concise', and exact description, reference being had to the accompanying drawing, forming a part of this specification. l'

' The present invention relates-generally to electric l's`vy'itchesof the tessere-operated pe., and more 'particular y yto switches of t rhisjclasswnich bei-positively operated witho'ut'th'e exercise of especial care ornat-v tentD-L O11 the Paf't 0f the. 1155er:

Such' switches 'are Aespecially applicable to sit nations Where the time .and ettenton'of the use'r are taken'up with'bther matters and a' minimum only caribe gilell' to the operation oftlie' Switch. 'Ajnf'ex'axiiple of s'ch a lsituation is thexeperation `of the control switch of an electric "horn of 'an'eutomobile They are alsofdsix'able in siti'lalvsilovns Where for any reason the operating 'pressure cannot be carefully applied.

An object O f the invention is'to provide a simple and eiiicientI arrangenrcnt'of parts While maintaining all the advantages f ready and -positi've operation'reqnired by switches of this class. Th'isf'and other 'featuresl of Iny invention will.beorffillypundersto'odu'p'on reference 'to-the Vfollowing; detailed description taken in conection'with thefacconpanying drawiri'ggandihe scope 0f the invention' Wil-l 'Bc' Ap.irri/ioniar] y'p'ointed out' in. the appendedrqlaiims.

' 'Inmy colpending'application Serial No.

749,135 I"have placed 'the claims to subject,-

'lnatterf coinmon' t'Q application and this application, and' in Amy''co-pentl'ngi application Serial No. 772,413?l I have placed `the clairns for subject-rnatlter common to `said application i'xnd'this' aipllicafiion b11't 'not, found 'in j application r le'ral No. 749,135, lelayingin 'this a 'Jl'ication oiilyelaims for subjcctfn'iattcr not-disclosed' i'neither of said applications-Serial No. 749,135 or Serial No. 772,402.

drawing, Figurc 1 rin a general perspective View lof a portion of an fiutom'oblile,*illustrating one application 'of my invention, an application ih Which'the switch embodying the invention-controls the circuit of an electric horn' through jan opening 1 Eigen-fandarie-Figa ntiongthe il ine 'agm-l iii-tounict-netswthe parts in the one bearing the same functional relation as the corresponding parts in the other.

In Fig. 6 I have illustrated kcontactsl and 18 which diiicr somewhat from the corresl'ionding contacts 15 and 18 of the first form of the invention. They are1 however, secured in position and operated in the same Way. Contact l5 is provided with a. cylindrical or fiat head instead of a conical or pointed one, as is contact 15. Contact 1S diiiers from Contact 18 in having` the additional strip 60 and a slightly larger opening 24 for the passage of contact 15". The strip 60 unites opposite portions of the Contact and preferably bears upon the base 19, as shown. It is also preferably provided With a central Contact point or teat 61, which may be composed of platinum, the same material as the strip, or otherwise, as desired. Thev circuit may be closed between contacts l5 and 18 either by contact 15 engaging contact point 61 alone or by contact 15 en gaging the walls of the opening` 24 alone, or by contact 15 engaging both Contact point 61 and the walls of the opening 24. These different closures may be brought about by different manipulations of the pressure-op- 'erated member. t l

In the illustrated application of the invention, namely, that involving the control of the circuit of an electrical automobile horn, which is illustrated in Fig. 1, 54 designatos the automobile, 55 the electric horn, 56 the steer-ing wheel, 57 the electric switch,

' and 58 the conductors-extending from ythe switch to theihorn and the electric battery, magneto, or other source of power.

In all the above-described forms of this switch the casingis sealed, that is, remains permanently closed to the entrance of dirt andmoisture during the operation of the switch to open and close the circuit as well as when the' parts are at rest.

It wi1l,.of course, he understood that the invention herein disclosed may be applied to awgreat variety of uses and that alterations and modifications may be made in thefforms herein illustrated without departin -f-rom the spirit and scope o'f my invention. I therefore aim to cover by the terms o'f the appended claimsall such uses, alterations.

and modifications as properly come within their scope.

Having thus described iny inventionfwliat I claim as new and desire to secure by Let ters Patent is- 1.. An electric switch comprisinga sealed casing, coperating switch contacts within said casing, a pressure operated memberA outside of said casing having a tiltable and rectilinear movement for 'operating said contacts.

2. An electric switch co'iiiprising a permanently closed casinghaving a portieri of -ment at different points in response to difits wall movable relative to the rest of said. casing, coperating switch contacts within said casing, a pressure operated member outside of said casing secured to said movable portion ci. the casing wall, and having a tiltable and rectilinear movement for operating the contacts.

3. An electric switch comprising a sealed casing, coperating switch contacts within said casing, and a. tiltable pressure-operated member outside of said casing for operating said contacts.

4. An electric switch comprising a perinanently closed casing havin a portion of its inclosing wall movable re ative to the rest of said casing, coperati-ng switch contacts within said casing, and a-ftiltable pressureoperated member operatng'outside lof said casingand secured to said .movable portion of the casing wall for operating said contacts.

5. An electric switch comprising -a casing having a diaphragmatic Wall, coperatin switch contacts in said casing having di ferent relative movements for mak-ing and breaking electrical connection in response to different movements of s'id ,diaphrngmatic wall, and a pressure-operated member loutside of said casing for giving the different movements to said wall. 95

6. An electric switchcomprising a .casing having a diaphragmatic wall, coperating switch contacts in said casin relatively movable into and out of electrical engageferent movements of said .diaphragmatie wall, and a. pressure-'operated member outside of said casin- `for giving the different movements to sai` wall.

7. An electr-ic switch comprising Ia casing having a diaphragmatic wall, coperatin switch contacts in said casini one of sai contacts being secured to said-fgliaphragmtic Wall, said contacts also havingl pin fandsocket relation, a pontionof -oneextending wit-hin an opening in the other, and :a pres sure-operated member 'secured to 1an nter'- mediate portion of the outside :of said da# phragmatic wall 'for actuatingthe .`latt eito relatively move said contacts into :and-lout of electrical engagement.

8. An electric switch' comprising ,a 'casing, la lpressure-operated member variously vmovable relative toisaid casing, and v.colserating switch contacts `within said casin relatively movable into and. -out, of electrica. engagement 'at different 'points :in response to the diierent movements ofisaidxpressufreoperated member, -said contacts bearing :.a. pm and socket'relation, a portion-of one; extending within a .portion of` theaother.

9.'An electric -switch comprising .-a'support, a. switch contact. mounted ontsaidsupport, a iexible diaphragm mounted above said support, a switch contactmounted upon 13.0-

' said Support,V a

ed'jen said da hragm 4and supported thereoil'at ai centra point only. v

10. An electric switch comprising a suit- @Ble supporti, a switch contact mounted on said support, a, diaphragm mounted AboveI tilteble pressure-operated mmbeif-hevin' e central `projection engag- `mgm andy a switch contact neuntned v on th'e opposite side of said dia i pl'rra'gmfvriending through said diaphragm s i .ind-'engagin in suidprojeetiony in the presl! 4 member. f 11'.v n electric switch 'comprising a, sup

.L per@l @switch contact; mounted on said surigag'mes y ad centraiiy located of said dialihragm imdl Ae tilt-able pressure-@eluted member mount- KXport, a. diaphragm ing seid diaphragm, a switch Contact on the opposite .side of said' diaphragm, seid switch 'contact being o eratvely moved into e11- gegement with t ing said operalting -member or by bodily moving thev same. Y f- In witness whereof, I have hereunto subscribed my neme in the presence of tw Wit messes. y

l WILLIAM W. DEAN.

Witnesses:

-f RQBERT LEWIS AMES,

ANNE SOLOMON.

l mohrrtedvahove said s" port, an operating member centrally engage opposite contact by til1sl 

